Apparatus for the distillation of coal and other bituminous fuels



May 27, 1924. 1,495,573

G. CANTIENY HPPARATUS FOR THE DISTILLATLQN OF COAL AND OTHER BITUMINOUS FUELS EL 5" led March 2, 1922 2 Sheets-Sheet. 1

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G. CANTIENY APPARATUS FOR THE DISTILLATION OF COAL AND OTHER BITUMINOUS FUELS Filed March 2, 1 922 2 Sheets-Sheetfl Inventor: f M *7 l/provements in and Relating to Ap aratus Patented May 27, 1924.

umrsu STATES PATENT OFFICE.

GEORG CAN'I'IENTY, OI NUREHBERG, GERMANY, ASSIGNOR TO KOHLENSGHI'IIDUNGS- GESELESCHAI'T I. B. E, OF NUREMBERG, GERMANY, A CORI'ORATION OF GER- APPARATUS FOR THE DISTILLA'I'ION OF COAT; AND OTHER BITUMINdUS FUELS.

Application filed March 2, 1922. Serial in). 540 36.

To all whom it may comem:

Be it known that I, Gnono CANTIENY, residing at Nuremberg, Bavaria, Germany, have invented certain new and useful Imfor the Distillation of Coal and 0t er Bituminous Fuels, of which the following is a specification.

' It has already been proposed to distil coal and other bituminous fuels in apparatus com rising an iron drum, which ma be rotata le and which is heated external y. For large outputs such distillation drums reach very great lengths, up to 25 m. and more, which necessitates provisions for their support. As, however, the walls of the drum are very considerably heated, and, as is well known, the strength of iron plates such as are used in their construction is considerably reduced at high temperatures, difliculties result which prevent such drum apparatus being used in practice.

The present invention relates to means for rendering the great heating of the outer drum walls innocuous for the strength of the ap aratus. This is effected by mounting within the heat interchanging drum proper a part which remains cooler and acts more particularly as a carrier, which supports the walls, which are heated and are therefore less capable of sustaining weight, and is adapted to transmit safely any bending and turning moments that may occur. This inner part can be constructed as an open carrying frame, for instance in the manner of a lattiw irder or the like, or can have the form of a simple tube mounted concentrically or proximately concentrically in the drum. V$hen the drum proper is rotatable, the inner part may take part in the rotation or be stationary.

.In the accompanying drawing in which Fig. 1 is a longitudinal section t rough one form of the apparatus, and Fig. 2 is a similar view through a modified form, a constructional example of the invention is shown, the arrangement being such that both the outer drum and the inner tubular body are rotatable. The heated walls a of the distillation drum roper are heated from a furnaceb. partial, treatmentffofthe fuel in the inner The material to be treated isfed by means of the charging hopper h and the worm m to the inner tube at its left hand end and is con veyed through the tube in consequence of the rotation of the apparatus- Known means, such as helical guiding ribs n and the like, may be used in addition to the tension members Z of the supporting structure, for facilitating the passage of the material. During. this passage through the inner tube a, or tubular carrier, as it may be called, the

fuel to be treated is preliminarily heated and the tube a, which acts as a support, is cooled in a convenient manner, so that its capacity as a supportin means is not endangered in spite of the act that it is located in the hot distillation drum. At the right hand end the material passes from the. centre drum 0 into the outer drum a and is again conveyed, to the left, where it leaves the apparatus through openings in the end plate (I and through the pipe 1. The hydrocarbons and the like, which are separated ofl, are taken from the apparatus throu h the pipe in, the inner orifice of the said pipe bemg preferably extended so far into the drum as to lie at a point, where the temperature of the material in the drum is approximately equal tothe point of condensation of the escaping hydrocarbons. By this means such hydrocarbons as are driven out of the fuel in the hotter parts of the drum are prevented from being deposited on the colder parts of the freshly introduced material.

From the constructional point of view the new arranglement has the advantage, that, owing to t epreliminary heating and; the

guiding tube 0, the apparatus can be made shorter than was possible in the case or" the apparatus as hitherto constructed, as a part of the total process takes place in the interior of the supporting tube 0 and the outer heating surface may be made correspondingly smaller.

From what has preceded, it will be manifest that the rotatable heat-interchanging drum, having the wall or walls a, the supporting carrier frame, consisting of the inner tube or drum 0, the end plates and functional parts associated therewith, in efi'ect constitute a closed distillation chamber, into which the material to be treated is fed by suitable means, comprising the worm m, from which the vapors and hydrocarbons distilled oii are conducted, as by means of the piping comprising the pipe 7?, and from which the solid residuals are delivered at 2', through suitable apparatus.

What I claim and desire to secure by Letters Patent is:

1. In an apparatus for distilling coal or analogous material, the combination with a distillation chamber comprising a rotatable heat-interchanging drum, a furnace arranged to externally heat said drum sufficiently to effect the desired distillation, means for feeding the material into the dis tilla tion chamber, means for withdrawing from the distillation chamber vapors and hydrocarbons driven off during the distillation process, and means whereby the solid residuals are suitably delivered, -of an in terior carrying member suitably mounted at each end, and means whereby said rotatable drum is internally supported at intervals from said interior carrying member.

2. In an apparatus for continuously distillin coal or analogous material, the com binatlon of a distillation chamber comprising a rotatable heat-interchanging drum;

a furnace arranged't'o externally heat said drum sufliciently to efiect the desired distillation of the material being treated, meansior feeding the material into the distillation chamber, means for withdrawing from the distillation chamber vapors and hydrocarbons driven off during the distillation process, means whereby the solid residuals are suitably delivered, an interior supporting frame axially located within said drum and suitably mounted at each end, and tension members whereby said rotatable drum is supported at intervals from said interior carrying member.

3. In an apparatus for continuously distilling coal and the like, the combination of a tubular carrier, rotatable plates closing the ends of said carrier, a drum' surrounding said carrier and connected to said plates, supports located at intervals between the unease/e walls of said drum and carrier, means to feed the coal into one end of said carrier, means to withdraw the distillation products from the other end of said carrier, and means to heat said drum externally,

4. In an apparatus for continuously distilling coal and the like, the combination of a tubular carrier, rotatable plates closing the ends of said carrier, a drum surrounding said carrier and connected to said plates, tension members located at intervals between the walls of said drum and carrier, means to feed the coal through one of said plates into said carrier, means to withdraw the distillation products through the other of said plates, and means for efi'ecting the heating of the material being treated.

5. In anvapparatus for continuously distilling coal and other bituminous substances, a rotatable distillation chamber, a central tubular support for said chamber, means connecting said support and said chamber at intervals, means to feed the coal into one end of said support, means to withdraw gaseous products from the other end of said support, and means to heat said chamber.

6. In an apparatus for continuously distilling coal and other bituminous substances, a rotatable distillation chamber, comprising an outer drum and a central tubular support for said drum, means connecting said support and said drum at intervals, means to feed the coal into one end of said support, means to withdraw gaseous products from the other end of said support, means to heat said chamber, means to convey the coal in one direction through said support, means to convey it in the other direction through said drum, and means whereby the residual material is delivered. a

7; In an apparatus for continuously distilling coal and the like, the combination of a tube, the ends of which are rotatably supported, means to feed the coal into one end of said tube, means extending into the other end or said tube for the withdrawal of the gases, a drum surrounding said tube, means to heat said drum externally, tension members connecting the walls of said drum and tube, and an outlet spout from the end of said drum adjacent said feeding means, the wall of said tube adjacent the other end of said drum having. openings for the passage of the coal from the tube into the drum.

8. In an apparatus for continuousl distilling coal and the like, the combination of a tube, the ends of which are rotatably supported, means to feed the coal into one end of said tube, a pipe extending into the other end of said tube for the withdrawal of the gases, the inner end of said pipe being located at a point where the temperature of the treated materiai is so high that the ice dri en ofl hydrocarbons will not condense in their travel to said pipe, a drum surrounding said tube, means to heat said drum externally, tension members connecting the walls of said drum and tube, and an outlet spout from the end of said drum adjacent said feeding means, the wall of said tube adjacent the other end of said drum having openings for the assage of the coal from n the tube into the mm.

In testimon whereof I aflix my signature in presence 0 two witnesses.

GEDRG CANTIENY.

Witnesses:

0mm So'm, ALEX v. Pmmrrorr.' 

